@article{EJDE_1999__1999__a121,
     author = {Cecchi, Mariella and Furi, Massimo and Marini, Mauro and Pera, Maria Patrizia},
     title = {Fredholm linear operators associated with ordinary differential equations on noncompact intervals},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {1999},
     year = {1999},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_1999__1999__a121/}
}